{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x589fd165a97e5d035535eaeef9e626909e0fb70cfb7f9a1a92a32d7a13e25106",
    "signature": "0xab27db1f8bf617c9ce55d6e4e5d246c5dd2bafbe7ff1275ceaaa71fbb198a49401e41bd87bf1417ef3db6268bfeebac21648306e09eafcf1c5e04539a997d78e1b",
    "signer": "0x5a3D8ee650e3AC49E3814789a0e2783f0bAFe395",
    "userId": "951735298"
  }
}